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Table 4 Empirical standard deviations (mas) of the GRACE-based equatorial effective angular momentum functions for the continental hydrosphere (H), oceans (O), Antarctica (A) and Greenland (G)

From: Mass-related excitation of polar motion: an assessment of the new RL06 GRACE gravity field models

 

\(\chi _2^{H}\)

\(\chi _1^{O}\)

\(\chi _2^{A}\)

\(\chi _2^{G}\)

CSR RL05

1.6 (9%)

3.5 (13%)

0.3 (3%)

0.1 (1%)

JPL RL05

1.9 (10%)

4.2 (15%)

0.2 (3%)

0.1 (1%)

GFZ RL05

2.0 (11%)

5.9 (21%)

0.3 (3%)

0.1 (1%)

ITSG-Grace2016

1.6 (9%)

2.8 (10%)

0.2 (2%)

0.1 (1%)

CSR RL06

1.0 (5%)

1.8 (7%)

0.1 (2%)

0.1 (1%)

JPL RL06

1.2 (6%)

2.1 (8%)

0.1 (1%)

0.1 (1%)

GFZ RL06

2.2 (12%)

3.2 (12%)

0.2 (2%)

0.1 (1%)

ITSG-Grace2018

1.0 (6%)

1.9 (7%)

0.1 (1%)

0.1 (1%)

  1. The smallest empirical standard deviations of the RL05 and RL06 solutions are marked in italics